Telephone attachment



PATENTED FEB. 23, 1904.

G. B. BUCHANAN. TELEPHONE ATTACHMENT.

APPLICATION FILED SEPT. 15 1902.

Inventor cams PEYERS co. mom umov. wAsHiNn'roN. o. c:

Patented February 23, 1904.

UNITED STATES PATENT OFFICE.

GEORGE BRIGGS BUCHANAN, OF HAYERSTRAW, NEW YORK.

TELEPHONE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 752,649, dated February 23, 1904.

tain new and useful Improvement in Telephone Attachments, of which the following is a description.

My invention relates to an improved attachment for telephones by which the operation of the instrument will be considerably facilitated.

My attachment is applied to any ordinary telephone and offers a support for the receiver, so that both hands ofthe operator will be free to make notes of conversations, memoranda of orders, &c.

In addition to sustaining the receiver my improved telephone attachment cooperates with the usual receiver-hook or the switch controlled thereby, so that by moving the receiver to a slight lateral extent the same effect is produced as when the receiver is removed from the hook in the ordinary instruments. This lateral movement of the receiver either short-circuits the magneto when used or results in a signal being transmitted to the central office in the case of automatic instrumentsz'. e. instruments which automatically call up the central office upon the removal of the receiver from the hook. The lateral movement of the receiver referred to is effected by normally mounting the receiver slightly out of its operative position, so that when moved to its operative position the telephone hook or apparatus controlled thereby will be actuate My invention provides for details of construction by which its efficiency and general convenience will be increased.

My objects generally are to provide an attachment for telephones which shall be capable of ready attachment to existing apparatus and by means of which the results above suggested may be efiectively realized.

I shall describe my invention in connection with an ordinary Wall apparatus, from which its capacity for use with desk-telephones and other special telephones will be understood.

In the drawings forming part of this speci- Application filed September 15, 1902. Serial No. 123,446. (No model.)

fication, Figure 1 is a side view of an ordinary wall-telephone with my-attachment applied thereto; Fig. 2, a front View of the same, and Fig. 3 a section on the line 3 3 of Fig. 2.

In all of the above views corresponding parts 5 5 are represented by the same numerals of reference.

The ordinary telephonic apparatus shown comprises a base-board l, a battery-box 2, having a desk-top 3, a transmitter 4:, carried on a pivoted arm 5, and a receiver 6. The hook 7 projects from the box 2 and normally supports the receiver. With the form of apparatus shown the removal of the receiver from the hook automatically calls up the central oflice. IVith other forms of instruments the removal of the receiver from the hook shaft and working in a slot 13 in said sleeve.

In this way the vertical adjustments of the receiver are provided for.

The sleeve 11 carries a horizontal tubular arm 14:, on the forward end of which is mounted a sleeve 15, horizontally adjustable thereon 5 and maintained in any position of its horizontal adjustment by a screw 16, working in a slot 17 The sleeve 15 carries the receiver 6 in any suitable way. The wires leading to the receiver pass through the tubular shaft 10 9 and arm 14: and are attached to the bindingposts 24:, a suflicient length being left to'form a loop 23, which will provide a surplus of wire sufficient to accommodate the parts when the receiver is extended and elevated to the extreme position. The wires being carried within the shaft and arm willbe protected of the operator will be prevented, as will be 9 understood. Carried by the shaft is an arm 18, cooperating with an inclined cam 19, formed integrally with a base-plate 26, which is provided with cars for attaching the cam to the hook 7 by means of screw-bolts 21 and washers 25, the latter being sufficiently large to prevent the bolts being drawn through the ordinarily large eyes which are formed adjacent to the extremities of the arms of the hook. Normally the arm 18 engages the upper end of the cam 19 to depress the hook 7; but by partially rotating the shaft 10, as by swinging the receiver 6 laterally, the arm 18 will be withdrawn from the cam to permit the hook 7 to be automatically elevated to call up the central ofiice or to short-circuit the magneto, according to the type of instrument used. A spring 22 is coiled around the shaft 10 and is anchored at one end in said shaft and at the other end in the bearing of the upper bracket 8 to normally turn the shaft to bring the arm 18 into engagement with 'the upper part of the cam 19 to thereby depress the hook.

Normally the receiver 6 is located so that its aperture is swung beyond the transmitter 4. When the apparatus is to be used, the receiver is moved'to one side either by the op.

erators hand or by a movement of the head until the operators mouth is brought in position at the transmitter, the receiver remaining in contact with the operators ear. This lateral movement of the receiver partially rotates the shaft 10, as will be understood, and actuates the hook 7. As soon as the operator is through using the apparatus the spring 22 returns the parts to their normal position and again results in the depressing of the hook 7 By providing for vertical and horizontal adjustments of the receiver and with the usual adjustments of the transmitter the apparatus can be readily and quickly adjusted to any extent desired, and as by its use the receiver will be properly sustained in the desired relation to the operators ear the attachment particularly commends itself to brokers and other persons who are required in their calling to make memoranda of telephonic orders and conversations.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. In a telephone attachment, the combination with a telephone-transmitter and switchhook, of a cam secured to the switch-hook, a tubular vertical shaft rotatably mounted adjacent to the transmitter, a sleeve adjustably carried at the upper end of such shaft, a tubular arm carried by the sleeve, a telephone-receiver carried by said arm and horizontally adjustable with respect to the same, electrical connections extending through the tubular arm and shaft, and connecting the telephone with the receiver, and a lever-arm carried by the tubular shaft and cooperating with the cam, substantially as and .for the purposes set forth. 1

2. In a telephone attachment, the combination with a telephone-transmitter and switchhook of a cam removably secured to the said switch-hook, a shaft, a receiver carried thereby and an arm carried by the shaft and adapted to engage with the cam when the shaft is partly rotated, substantially as and for the purposes set forth.

This specification signed and witnessed this 28th day of August, 1902.

GEORGE BRIGGS BUCHANAN.

Witnesses:

FRANK L. DYER, J NO. RoBT. TAYLOR. 

